If your older (or brand new) smart TV starts to feel slow, you might think it is time to buy a new one. However, you can do a few simple things in the settings menu to perk it up. It had been a few years since I’d really dug into my main TV’s settings menu, and I got it feeling new again. Plus, I didn’t have to exhaustively search for the right code to access the factory service menu to make tweaks.